diff --git a/helpdesk/tests/test_api.py b/helpdesk/tests/test_api.py
index 4b7de7a9..131a0bb0 100644
--- a/helpdesk/tests/test_api.py
+++ b/helpdesk/tests/test_api.py
@@ -1,6 +1,5 @@
 import base64
-from collections import OrderedDict
-from datetime import datetime
+import datetime
 from django.contrib.auth.models import User
 from django.core.files.uploadedfile import SimpleUploadedFile
 from freezegun import freeze_time
@@ -15,10 +14,15 @@ from rest_framework.status import (
     HTTP_403_FORBIDDEN,
 )
 from rest_framework.test import APITestCase
+from _datetime import timedelta
+from helpdesk.lib import convert_value
+from django.utils import timezone
+
+frozen_date_time_str = (datetime.datetime.now() - timedelta(days=100)).isoformat()
 
 
 class TicketTest(APITestCase):
-    due_date = datetime(2022, 4, 10, 15, 6)
+    due_date = timezone.now() - timedelta(days=20)
 
     @classmethod
     def setUpTestData(cls):
@@ -212,8 +216,12 @@ class TicketTest(APITestCase):
         self.assertEqual(response.status_code, HTTP_204_NO_CONTENT)
         self.assertFalse(Ticket.objects.exists())
 
-    @freeze_time("2022-06-30 23:09:44")
+    @freeze_time(frozen_date_time_str)
     def test_create_api_ticket_with_custom_fields(self):
+        custom_date = "2022-04-11"
+        custom_time = "23:59:59"
+        custom_datetime = convert_value(datetime.datetime.now() - timedelta(days=30))
+
         # Create custom fields
         for field_type, field_display in CustomField.DATA_TYPE_CHOICES:
             extra_data = {}
@@ -273,9 +281,9 @@ class TicketTest(APITestCase):
                 "custom_decimal": "42.987",
                 "custom_list": "Red",
                 "custom_boolean": True,
-                "custom_date": "2022-4-11",
-                "custom_time": "23:59:59",
-                "custom_datetime": "2022-4-10 18:27",
+                "custom_date": custom_date,
+                "custom_time": custom_time,
+                "custom_datetime": custom_datetime,
                 "custom_email": "email@test.com",
                 "custom_url": "http://django-helpdesk.readthedocs.org/",
                 "custom_ipaddress": "127.0.0.1",
@@ -284,7 +292,9 @@ class TicketTest(APITestCase):
         )
         self.assertEqual(response.status_code, HTTP_201_CREATED)
         # Check all fields with data returned from the response
-        self.assertEqual(
+        self.maxDiff = None
+        # followup_set = response.data.pop("followup_set")
+        self.assertDictEqual(
             response.data,
             {
                 "id": 1,
@@ -300,21 +310,19 @@ class TicketTest(APITestCase):
                 "due_date": None,
                 "merged_to": None,
                 "followup_set": [
-                    OrderedDict(
-                        [
-                            ("id", 1),
-                            ("ticket", 1),
-                            ("user", 1),
-                            ("title", "Ticket Opened"),
-                            ("comment", "Test description\nMulti lines"),
-                            ("public", True),
-                            ("new_status", None),
-                            ("time_spent", None),
-                            ("followupattachment_set", []),
-                            ("date", "2022-06-30T23:09:44"),
-                            ("message_id", None),
-                        ]
-                    )
+                    {
+                        "id": 1,
+                        "ticket": 1,
+                        "user": 1,
+                        "title": "Ticket Opened",
+                        "comment": "Test description\nMulti lines",
+                        "public": True,
+                        "new_status": None,
+                        "time_spent": None,
+                        "followupattachment_set": [],
+                        "date": frozen_date_time_str + "Z",
+                        "message_id": None,
+                    }
                 ],
                 "custom_varchar": "test",
                 "custom_text": "multi\nline",
@@ -322,9 +330,9 @@ class TicketTest(APITestCase):
                 "custom_decimal": "42.987",
                 "custom_list": "Red",
                 "custom_boolean": True,
-                "custom_date": "2022-04-11",
-                "custom_time": "23:59:59",
-                "custom_datetime": "2022-04-10T18:27",
+                "custom_date": custom_date,
+                "custom_time": custom_time,
+                "custom_datetime": custom_datetime,
                 "custom_email": "email@test.com",
                 "custom_url": "http://django-helpdesk.readthedocs.org/",
                 "custom_ipaddress": "127.0.0.1",
diff --git a/helpdesk/tests/test_checklist.py b/helpdesk/tests/test_checklist.py
index 657e045d..101339d4 100644
--- a/helpdesk/tests/test_checklist.py
+++ b/helpdesk/tests/test_checklist.py
@@ -1,8 +1,9 @@
-from datetime import datetime
 from django.contrib.auth import get_user_model
 from django.test import TestCase
 from django.urls import reverse
 from helpdesk.models import Checklist, ChecklistTask, ChecklistTemplate, Queue, Ticket
+from _datetime import timedelta
+from django.utils import timezone
 
 
 class TicketChecklistTestCase(TestCase):
@@ -167,7 +168,9 @@ class TicketChecklistTestCase(TestCase):
     def test_mark_task_as_undone(self):
         checklist = self.ticket.checklists.create(name="Test checklist")
         task = checklist.tasks.create(
-            description="Task", position=1, completion_date=datetime(2023, 5, 1)
+            description="Task",
+            position=1,
+            completion_date=timezone.now() - timedelta(days=10),
         )
         self.assertIsNotNone(task.completion_date)
 
diff --git a/helpdesk/tests/test_time_spent_auto.py b/helpdesk/tests/test_time_spent_auto.py
index 4f4f9967..25badb32 100644
--- a/helpdesk/tests/test_time_spent_auto.py
+++ b/helpdesk/tests/test_time_spent_auto.py
@@ -8,6 +8,7 @@ from django.urls import reverse
 from helpdesk.models import FollowUp, Queue, Ticket
 from helpdesk import settings as helpdesk_settings
 import uuid
+from django.utils import timezone
 
 
 @override_settings(USE_TZ=True)
@@ -413,9 +414,7 @@ class TimeSpentAutoTestCase(TestCase):
             "queue": queues["new"],
             "assigned_to": self.user,
             "status": Ticket.OPEN_STATUS,
-            "created": datetime.strptime(
-                "2024-04-09T08:00:00+00:00", "%Y-%m-%dT%H:%M:%S%z"
-            ),
+            "created": timezone.now() - timedelta(days=10),
             "description": "Followup time spent auto exclude queues",
         }
         ticket = Ticket.objects.create(**initial_data)